Refrigerating apparatus



July'23, 1929. PLAT-[EN 1,721,502

REFRIGERATING APPARATUS Filed May 16, 1927 2 Sheets-Sheet l I WE July23, 1929. E. PLATTEN PARATUS il y 1a, 1927 2 Sheets-Sheet 2 m d JPatented July 23,, 192 9.

UNITED STATES mm rum, or cam my, wzsconsm.

mmemrmearrmrus.

Application filed Kay 18, 1927. Serial No. 191,719.

This invention relates to refrigerating apparatus and is particularlydirected to household refrigerating apparatus.

Objects of this invention are to provide a' novel refrigeratingapparatus in which a plurality of compartments are arranged in a row andprovided with a metal floor and preferably with metal side wallsintimatelyv connected with the metal floor so as to rom vide arefrigerating unit that will con not the heat throughthe floor and fromthe side walls, which heatis conducted from the foods or material placedin the individual compartments. J I l5 Further object is to provide anovel form of refrigerating unit suitable for apartmentsand adapted tobe located in a place freely accessible to all of the tenants and to beconstructed so that each tenant is provided with a separate compartmentfree from those of all the other tenants so that the food contained I inone compartment will not contaminate the food in the other compartments,and to provide a single refrigerating unit in actual physical contactwith the metal linings of the different com artments. P

Further ob ect is to provide a novel means 'for yieldingly holding thepipes of the, re-

frigerating unit, in intimate engagement with the metal floor so that adirect conduc tion from the rest of the metal of the coi'fi' partment ofthe refrigerating unit is obtained. I

Further objects are to provide a novel form of refrigerating apparatushaving the characteristics noted above in which metal lining is providedwith a metal spring sealing typeof gasket, and which is provided withadoor to effect a conductin contactfor the walls of this com artmentwhen the door is closed. Embo iments of the invention are shown in theaccompanying drawings, in which: Figure 1 is a front view of theapparatus with a portion broken away.

is F1 e 2 is a transverse sectional view-of the line 22 of Figure 1.

Figure '3 is a transverse sectional view of v a modified formshowing a'novel'means of, holding the refrigerating unit in contact withthe metalfloor.

- Referring to thedrawings it will be seen that the pair of compartments1' and 2 has been shown to illustrate the invention, 'although it is tobe distinctly understood that, any pumber of compartments may beemployed or arranged in the device. The compartments are each linedalong four vertical walls with a metal lining mately joined to the metalfloor 4.

the conventional types, such as, that known commonly as Frigidaire andcomprising a drum 5iwhi'ch is provided with ipes 6, extending outwardlyfrom the cabinet. The unit also comprises u per and lower stretches sofpipes 7 an 8 joined to the drum 5. I

As shown in Figures 1 and 2, it is to be ndted that the upper stretches7 of the pipes are'held yieldingly against the floor by the metal plate9. The late is provided with bellows like or pleated metal strips 10 atits edges through which the attaching bolts 11 extend.

It is to be noted further that the side walls continue downwardly andfrom lower compartment 12. These compartments are lined throughout withmetal as indicated by ref-- erence character 13, and a sealed trap 14 isprovided for this compartment.

' The compartments are surrounded b a thermal insulating sheet .orpackin 15. his insulating material extends aroun the lower compartment12 and each wall of the individual refrigerating compartments. Each ofthe refrigerating compartments is provided with a door 17 provided witha latch or key lock 18. The doors 17 for the individual compartments arealso provided with a lining or packing 19 of insulating material as maybe seen from figure 2. Preferably also their inner sides are providedwith a metal lming 20.

R is to be noted that each door, when in closed position, is sealed withrubber gasket 21 which extends com letely around. door opening and issuitably eld in place.

Further it is to be notedthat a spring metal contact bellows like stri22 extends around 'the vertical and bottom ,ends of the doors and issoldered or held secure to the metal lining of the compartment.

It is to be notedfurther that each compartment is which are rigidlyattached to the vertical metal lining.v

Preferab y, the cabinet is provided with plurality drawers 24 whichproject outwardl from the face of the cabinet and in whic cubes of iceare adaptedto be frozen in the usual manner. These drawers arepreferablypbsitioned between the upper and "lower 3 which is inti- Therefrigerating unit may be of any of provided with metal shelves 23 Istretch of the pipes 7 and 8 of'the refrigerating unit.

A, modified form of construction for holding the refrigerating unit incontact with the floor of the compartment is shown in Fi ure 3 from'whichit will be seen that the 001' indicated by reference character 25is preferably provided with longitudinally extending reenforcing metalstrip 26 so that the floor as well as the lining may be made of thinnermetal. Those reenforcing strips receive the end of the attaching bolts27 which pass through the bottom metal plate 28. This metal plateencloses both the upper and lower stretch of pipe 7 and 8. The bolts 27also pass through the corrugated or fluted metal sealing strips 29.

It is to be noted particularly that the refrigerating unit may bequickly removed for repairing without requiring any soldering or heatinIt Wlll be seen also that the novel form of refrigerating apparatus hasbeen disclosed by this invention which is suitable for use in apartmenthouses to" provide each of the tenants with an individual compartmentmaintained at a low temperature.

From actual experiments conducted with this apparatus it has been foundthat a very small amount of energy is required to run the ap aratus atthe desired low temperature.

r ,t is to be particularly noted that although a single refrigeratingunit or a battery of such unit is used for simultaneously refrigeratingall of the compartments that, nevertheless, each compartment is distinctand separate from all other compartments.

It will beseen further that a novel metho of refrigerating for eachindividual compart-,

ment has been provided by this invention and compartments conducts bycontact to the side walls and. floors of the compartments and that thesemetal walls and floors conduct the heat to the refrigerating unit whichcarries it away.

-As a single unit for household or domestic' use, 1t consumes-much lesspower, it requires a much smaller, less expensive motor, and can be soldto the consumer for much less than any other type of refrigerator, anddue to the Although the invention has been described in considerabledetail, such description is intended as illustrative rather thanlimiting as I the invention maybe variously embodied and as the scope ofsuch invention is to be determined asclaimed.

I claim:

1. A refrigerating apparatus having one or more food compartments eachhaving metal Walls, and the floor composed of a tank into which therefrigerant -is expanded directly, materials to be cooled being placedin contact with the floor or walls, the heat being removed by directconduction and carried to the refrigerating unit, a metallic lined doorand a yielding metallic connection between the door and juxtaposed wallsforming an uninterrupted heat conducting contact between the door andthe metallic lining of the refrigerator cabinet.

2. A refrigerating apparatus having one or more food compartments eachhaving metal walls, a metal lined door and ayieldable metallicconnection between the door and juxtaposed walls forming anuninterrupted heat conducting contact between the door and themetalwalls of the compartments.

3. A refrigerating apparatus having one or more food compartments eachhaving metal walls, a metal lined door and a yieldable metallicelongated strip forming connection'between the door and juxtaposed wallsof the compartments, forming an uninterrupted heat conducting'oontactbetween the door and the metal lining of the refrigerating cabinet. 7

In testimony that I claim the foregoing I have hereunto set my hand atGreen Bay, in the county of Brown and State of Wisconsin,

